1654426945 has 8 divisors (see below), whose sum is σ = 2053771560. Its totient is φ = 1277902080.

The previous prime is 1654426901. The next prime is 1654426973. The reversal of 1654426945 is 5496244561.

It can be written as a sum of positive squares in 4 ways, for example, as 396447921 + 1257979024 = 19911^2 + 35468^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1654426945 - 2¹¹ = 1654424897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1654426895 and 1654426904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5704776 + ... + 5705065.

It is an arithmetic number, because the mean of its divisors is an integer number (256721445).

Almost surely, 2^1654426945 is an apocalyptic number.

It is an amenable number.

1654426945 is a deficient number, since it is larger than the sum of its proper divisors (399344615).

1654426945 is a wasteful number, since it uses less digits than its factorization.

1654426945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11409875.

The product of its digits is 1036800, while the sum is 46.

The square root of 1654426945 is about 40674.6474477653. The cubic root of 1654426945 is about 1182.7216086176.

The spelling of 1654426945 in words is "one billion, six hundred fifty-four million, four hundred twenty-six thousand, nine hundred forty-five".